Fatal error: Uncaught Error: Interface 'ParagonIE\ConstantTime\EncoderInterface' not found in C:\Apache24\htdocs\vendor.old\paragonie\constant_time_encoding\src\Base64.php:38 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\vendor.old\paragonie\constant_time_encoding\src\Base64.php on line 38